632838276785 has 64 divisors (see below), whose sum is σ = 912637829376. Its totient is φ = 415159680000.

The previous prime is 632838276781. The next prime is 632838276797. The reversal of 632838276785 is 587672838236.

It is not a de Polignac number, because 632838276785 - 2² = 632838276781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is not an unprimeable number, because it can be changed into a prime (632838276781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9478379 + ... + 9544911.

It is an arithmetic number, because the mean of its divisors is an integer number (14259966084).

Almost surely, 2^632838276785 is an apocalyptic number.

632838276785 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

632838276785 is a deficient number, since it is larger than the sum of its proper divisors (279799552591).

632838276785 is a wasteful number, since it uses less digits than its factorization.

632838276785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66866.

The product of its digits is 162570240, while the sum is 65.

The spelling of 632838276785 in words is "six hundred thirty-two billion, eight hundred thirty-eight million, two hundred seventy-six thousand, seven hundred eighty-five".